A display module, its manufacturing method, and a display device

Abstract

The display module includes a display panel, a protective layer, and an encapsulation layer. The display panel includes a display area and a bonding area connected to the display area. The protective layer covers the outside of the bonding area. The encapsulation layer is arranged around the display panel. In the protective layer and the encapsulation layer, one is provided with a positioning protrusion and the other is provided with a positioning groove. The positioning protrusion is embedded in the positioning groove.

Description

Technical Field

[0001] This application belongs to the field of display device technology, and in particular relates to a display module and its manufacturing method, as well as a display device. Background Technology

[0002] Display modules and display devices are widely used, especially OLED screens, which are widely used due to their advantages such as self-illumination, low power consumption, thinness, flexibility, vibrant colors, high contrast, and fast response speed. However, because OLED materials are sensitive to water and oxygen, the display panel needs to be encapsulated.

[0003] In related technologies, after encapsulating the display panel, the contact force between the encapsulation layer and the display panel is often poor. Under the action of external force, displacement is likely to occur, and the poor contact force between the two increases the risk of defects. Summary of the Invention

[0004] This application aims to at least partially solve the technical problem of the short lifespan of display modules. To this end, this application provides a display module, its manufacturing method, and a display device.

[0005] In a first aspect, an embodiment of this application provides a display module, comprising:

[0006] The display panel includes a display area and a binding area connected to the display area;

[0007] A protective layer covers the outside of the binding area;

[0008] An encapsulation layer is disposed around the perimeter of the display panel;

[0009] In the protective layer and the encapsulation layer, one is provided with a positioning protrusion and the other is provided with a positioning groove, and the positioning protrusion is embedded in the positioning groove.

[0010] A positioning protrusion is provided on one of the protective layer and the encapsulation layer, and a positioning groove is provided on the other. The cooperation between the positioning protrusion and the positioning groove enhances the contact area between the bonding area and the encapsulation layer, thereby increasing the interaction area between the bonding area and the encapsulation layer. Under the action of external force, the cooperation between the positioning protrusion and the positioning groove increases the interaction force between the protective layer and the encapsulation layer, thereby reducing the relative displacement between the encapsulation layer and the bonding area, reducing the risk of damage to the display module, and thus improving the service life of the entire display module.

[0011] In an optional embodiment of this application, when the protective layer is provided with a positioning protrusion, the connection area between the positioning protrusion and the protective layer is smaller than the projected area of ​​the positioning protrusion on the protective layer.

[0012] In an optional embodiment of this application, when the protective layer is provided with a positioning protrusion, the height of the positioning protrusion relative to the protective layer is less than or equal to 300 μm.

[0013] In an optional embodiment of this application, the maximum width of the projection surface of the positioning protrusion on the protective layer is less than or equal to 300 μm.

[0014] In an optional embodiment of this application, there are multiple positioning protrusions, and the multiple positioning protrusions are disposed on the protective layer or the encapsulation layer.

[0015] In an optional embodiment of this application, two adjacent positioning protrusions are spaced apart, with a spacing of less than or equal to 5 μm.

[0016] In optional embodiments of this application, any two positioning protrusions may have the same or different shapes.

[0017] In optional embodiments of this application, the cross-sectional shape of the positioning protrusion is at least one of T-shaped, L-shaped, rectangular, circular, trapezoidal, triangular and arc-shaped.

[0018] In an optional embodiment of this application, the positioning protrusion is printed and connected to the positioning groove.

[0019] In an optional embodiment of this application, the display module further includes an adhesive layer and a cover plate, the adhesive layer bonding the cover plate to the display surface of the display panel, and the height of the positioning protrusion and the protective layer being less than the distance between the display panel and the cover plate.

[0020] In an optional embodiment of this application, the positioning protrusion is printed and connected to the protective layer when the protective layer is provided with the positioning protrusion.

[0021] In an optional embodiment of this application, when the positioning protrusion is provided in the protective layer, the positioning protrusion is integrally printed with the protective layer.

[0022] In optional embodiments of this application, the protective layer may be made of the same or different material as the positioning protrusion.

[0023] Secondly, embodiments of this application provide a method for manufacturing a display module, the method comprising:

[0024] A protective layer is provided in the bonding area of ​​the display panel, wherein the protective layer is formed by printing or by coating;

[0025] The cover plate is bonded to the display surface of the display panel through an adhesive layer; a positioning protrusion is printed on the side of the protective layer away from the bonding area; and the bonding area is bent.

[0026] An encapsulation layer is printed around the display panel to form a positioning groove that mates with the positioning protrusion.

[0027] The display module manufacturing method provided in the second aspect has the same beneficial effects as the display module provided in the first aspect, and will not be repeated here.

[0028] In an optional embodiment of this application, the steps of bonding the cover plate to the display surface of the display panel via an adhesive layer, printing a positioning protrusion on the side of the protective layer away from the bonding area, and bending the bonding area include:

[0029] The cover plate is bonded to the display surface of the display panel through the adhesive layer;

[0030] The binding area where the protective layer is provided is bent;

[0031] The positioning protrusion is printed on the side of the protective layer away from the protective layer.

[0032] In an optional embodiment of this application, the steps of bonding the cover plate to the display surface of the display panel via an adhesive layer, printing a positioning protrusion on the side of the protective layer away from the bonding area, and bending the bonding area include:

[0033] The positioning protrusion is printed on the side of the protective layer away from the binding area;

[0034] The cover plate is bonded to the display surface of the display panel through the adhesive layer;

[0035] The binding area is provided with the protective layer and the positioning protrusion.

[0036] Thirdly, embodiments of this application provide a display device, including the display module provided in the first aspect.

[0037] The beneficial effects of the display device provided in the third aspect are the same as those of the display module provided in the first aspect, and will not be repeated here. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 A schematic diagram of the structure of a display module provided in one embodiment of this application is shown.

[0040] Figure 2 A schematic diagram of the structure of a display module provided in another embodiment of this application is shown.

[0041] Figure 3 This paper shows a schematic diagram of the T-shaped cross-section of the positioning protrusion of the display module provided in an embodiment of this application.

[0042] Figure 4 This diagram illustrates a circular cross-section of the positioning protrusion of the display module provided in an embodiment of this application.

[0043] Figure 5 A schematic diagram of the structure of the positioning protrusion of the display module provided in the embodiment of this application is shown, which has a trapezoidal cross-section.

[0044] Figure 6 A flowchart of a display module manufacturing method provided in an embodiment of this application is shown.

[0045] Figure 7 A schematic diagram of step S100 is shown.

[0046] Figure 8 A flowchart of steps S212-S216 of the display module manufacturing method provided in the embodiments of this application is shown.

[0047] Figure 9 A schematic diagram of step S212 in the display module manufacturing method provided in this application embodiment is shown.

[0048] Figure 10 A schematic diagram of step S214 in the display module manufacturing method provided in this application embodiment is shown.

[0049] Figure 11 A schematic diagram of step S216 in the display module manufacturing method provided in this application embodiment is shown.

[0050] Figure 12 A flowchart of steps S232-S236 of the display module manufacturing method provided in the embodiments of this application is shown.

[0051] Figure 13 A schematic diagram of step S232 in the display module manufacturing method provided in this application embodiment is shown.

[0052] Figure 14 A schematic diagram of step S234 in the display module manufacturing method provided in this application embodiment is shown.

[0053] Figure 15 A schematic diagram of step S236 in the display module manufacturing method provided in this application embodiment is shown.

[0054] Figure 16 This paper shows a schematic diagram of the structure of step S300, which corresponds to steps S212-S216, in the display module manufacturing method provided in this application embodiment.

[0055] Figure 17 This paper shows a schematic diagram of the structure of step S300, which corresponds to steps S232-S236, in the display module manufacturing method provided in this application embodiment.

[0056] Reference numerals: 100-Display module, 110-Display panel, 112-Display area, 113-Binding area, 114-Display surface, 115-Non-display surface, 120-Protective layer, 130-Encapsulation layer, 140-Positioning protrusion, 150-Positioning groove, 160-Adhesive layer, 170-Cover plate, 180-Back film, 190-Gasket. Detailed Implementation

[0057] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0058] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0059] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0060] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0061] Display modules and display devices are widely used, especially OLED screens, which are widely used due to their advantages such as self-illumination, low power consumption, thinness, flexibility, vibrant colors, high contrast, and fast response speed. However, because OLED materials are sensitive to water and oxygen, the display panel needs to be encapsulated.

[0062] In related technologies, after encapsulating the display panel, the contact force between the encapsulation layer and the display panel is often poor. This makes them prone to displacement under external forces, increasing the risk of defects. The display module, manufacturing method, and display device provided in this application improve upon these problems. They enhance the interaction force between the encapsulation layer and the display panel under external forces, reducing the risk of displacement and thus minimizing damage to the display module and extending its lifespan.

[0063] This application is described below with reference to the accompanying drawings and specific embodiments:

[0064] Please see Figure 1 and Figure 2 This application provides a display module 100. The display module 100 provided by this application can reduce the risk of displacement of the encapsulation layer 130 and the display panel 110 when the entire display module 100 is subjected to external force, thereby reducing the risk of damage to the display module 100 and improving the service life of the entire display module 100.

[0065] In this embodiment of the application, the display module 100 includes: a display panel 110, a protective layer 120, and an encapsulation layer 130. The display panel 110 includes a display area 112 and a bonding area 113 connected to the display area 112. The protective layer 120 covers the outside of the bonding area 113. The encapsulation layer 130 is disposed around the display panel 110. In the protective layer 120 and the encapsulation layer 130, one is provided with a positioning protrusion 140, and the other is provided with a positioning groove 150. The positioning protrusion 140 is embedded in the positioning groove 150.

[0066] In this embodiment, the display panel 110 includes a display area 112 and a bonding area 113. The bonding area 113 is bent relative to the display area 112. The electronic components of the display panel 110 can be disposed within the bonding area 113, that is, the electronic components of the display panel 110 are disposed on the inner side of the bonding area 113. Disposing the electronic components of the display panel 110 on the inner side of the bonding area 113 facilitates the arrangement of the electronic components. By placing all the electronic components on the non-display surface 115 of the display area 112, the overall appearance of the display panel 110 becomes neat and tidy.

[0067] It should be noted that the binding area 113 is roughly arc-shaped. The inner side of the binding area 113 refers to the inside of the arc, while the outer side of the binding area 113 refers to the outside of the arc.

[0068] The protective layer 120 covers the outer side of the bonding area 113, meaning that the protective layer 120 is completely attached to the outer side of the bonding area 113. The protective layer 120 provides encapsulation and protection for the outer side of the bonding area 113. The protective layer 120 can be applied to the outer side of the bonding area 113 through a coating process, printing, or other methods. The process by which the protective layer 120 is applied to the bonding area 113 is not specifically limited.

[0069] In addition, the periphery of the display panel 110 refers to all surfaces other than the display surface 114 of the display panel 110. The encapsulation layer 130 is provided around the periphery of the display panel 110, meaning that the encapsulation layer 130 can be provided on all surfaces other than the display surface 114 of the display panel 110. The encapsulation layer 130 provides protection to the other sides of the display panel 110, and provides waterproof and anti-oxidation functions.

[0070] A positioning protrusion 140 is provided on one of the protective layer 120 and the encapsulation layer 130, and a positioning groove 150 is provided on the other. Through the cooperation of the positioning protrusion 140 and the positioning groove 150, the contact area between the bonding area 113 and the encapsulation layer 130 is enhanced, thereby increasing the working area between the bonding area 113 and the encapsulation layer 130. Under the action of external force, the cooperation of the positioning protrusion 140 and the positioning groove 150 increases the force between the protective layer 120 and the encapsulation layer 130, which can reduce the relative displacement between the encapsulation layer 130 and the bonding area 113, thereby reducing the risk of damage to the display module 100 and improving the service life of the entire display module 100.

[0071] In this embodiment, the positioning protrusion 140 may be disposed on the protective layer 120, and the positioning groove 150 may be disposed on the encapsulation layer 130. Alternatively, the positioning protrusion 140 may be disposed on the encapsulation layer 130, and the positioning groove 150 may be disposed on the protective layer 120. For ease of description in this application embodiment, the example of the positioning protrusion 140 being disposed on the protective layer 120 and the positioning groove 150 being disposed on the encapsulation layer 130 is used for description, and the scheme of the positioning protrusion 140 being disposed on the encapsulation layer 130 and the positioning groove 150 being disposed on the protective layer 120 can be deduced by analogy.

[0072] Regarding the shapes of the positioning protrusion 140 and the positioning groove 150, they should be compatible, meaning they should be mutually matching shapes. For example, if the external shape of the positioning protrusion 140 is spherical, then the shape of the positioning groove 150 should also be spherical. If the shape of the positioning protrusion 140 is trapezoidal, then the positioning groove 150 should also be trapezoidal. Of course, in addition to the above-mentioned regular shapes, the positioning protrusion 140 and the positioning groove 150 can also be irregular shapes that can be matched.

[0073] The cross-sectional shape of the positioning protrusion 140 can be T-shaped (e.g., ...). Figure 3 (as shown), L-shaped, rectangular, circular (e.g.) Figure 4 (as shown), trapezoidal (as shown) Figure 5 As shown), at least one of the shapes: triangle and arc. That is, the positioning protrusion 140 can be one of the above shapes or a combination of multiple of the above shapes, and can be set according to the actual structure, shape and other factors of the protective layer 120 and the encapsulation layer 130.

[0074] The cross-sectional area of ​​the positioning protrusion 140 refers to the cross-sectional area on a plane perpendicular to the protective layer 120.

[0075] Similarly, the number of positioning protrusions 140 and positioning grooves 150 can be set according to the size of the binding area 113. If the binding area 113 is relatively large, the number of positioning protrusions 140 and positioning grooves 150 can be set to be more. If the binding area 113 is relatively small, the number of positioning protrusions 140 and positioning grooves 150 can be set to be more.

[0076] In some embodiments, when the positioning protrusion 140 is provided on the protective layer 120, the connection area between the positioning protrusion 140 and the protective layer 120 is smaller than the projected area of ​​the positioning protrusion 140 on the protective layer 120.

[0077] When the positioning protrusion 140 is disposed on the protective layer 120, the positioning groove 150 is disposed on the encapsulation layer 130. The connection area between the positioning protrusion 140 and the protective layer 120 refers to the area of ​​the connection point between the positioning protrusion 140 and the protective layer 120. If the connection area between the positioning protrusion 140 and the protective layer 120 is smaller than the projected area of ​​the positioning protrusion 140 on the protective layer 120, it indicates that there is a larger area on the positioning protrusion 140 than the connection point between the positioning protrusion 140 and the protective layer 120. In other words, on multiple planes parallel to the protective layer 120, the cross-sectional area of ​​the positioning protrusion 140 on at least one of those planes is larger than the connection area.

[0078] The connection area between the positioning protrusion 140 and the protective layer 120 is smaller than the projected area of ​​the positioning protrusion 140 on the protective layer 120. This indicates that in the direction of the positioning protrusion 140 near the protective layer 120, the shape of the positioning protrusion 140 is at least partially recessed inward. This allows the positioning protrusion 140 to be locked with the positioning groove 150 when they mate, thereby increasing the force between the positioning protrusion 140 and the positioning groove 150 and reducing the risk of damage to the encapsulation layer 130 and the protective layer 120 when subjected to external forces. This, in turn, improves the service life of the entire display module 100.

[0079] It should be noted that the fact that the outer shape of the positioning protrusion 140 is at least partially recessed inward means that the positioning protrusion 140 may have a portion of its outer peripheral surface recessed inward in the direction close to the protective layer 120, or all of the outer peripheral surfaces of the positioning protrusion 140 may be recessed inward in the direction close to the protective layer 120.

[0080] Alternatively, the outer peripheral surface of the positioning protrusion 140 may have multiple inwardly recessed areas in the direction close to the protective layer 120. The more inwardly recessed areas there are, the greater the force between the positioning protrusion 140 and the positioning groove 150, and the lower the risk of malfunction of the encapsulation layer 130 and the protective layer 120 when subjected to external force.

[0081] In some embodiments, there are multiple positioning protrusions 140, and the multiple positioning protrusions 140 are disposed on the protective layer 120 or the encapsulation layer 130.

[0082] If the positioning protrusion 140 is disposed on the protective layer 120 and the positioning groove 150 is disposed on the encapsulation layer 130, then multiple positioning protrusions 140 are disposed on the protective layer 120. If the positioning protrusion 140 is disposed on the encapsulation layer 130 and the positioning groove 150 is disposed on the protective layer 120, then multiple positioning protrusions 140 are disposed on the encapsulation layer 130. Taking the case where multiple positioning protrusions 140 are disposed on the protective layer 120 as an example, the same principle applies when multiple positioning protrusions 140 are disposed on the encapsulation layer 130.

[0083] Multiple positioning protrusions 140 are disposed on the protective layer 120. The multiple positioning protrusions 140 can be disposed continuously or spaced apart. Continuous disposal means that two adjacent positioning protrusions 140 can be connected, while spaced disposal means that there is a gap between two adjacent positioning protrusions 140.

[0084] Multiple positioning protrusions 140 can be arranged in a matrix on the protective layer 120, or they can be arranged in other ways on the protective layer 120. The arrangement method is not specifically limited.

[0085] Similarly, the sizes of the multiple positioning protrusions 140 can be the same or different, and no specific limitation is made in this application.

[0086] Any two positioning protrusions 140 may have the same or different shapes. That is, the shapes of the multiple positioning protrusions 140 may all be the same, or the multiple positioning protrusions 140 may have multiple different shapes. For example, some of the positioning protrusions 140 may have a T-shaped cross-section, some of the positioning protrusions 140 may have an L-shaped cross-section, some of the positioning protrusions 140 may have a spherical cross-section, some of the positioning protrusions 140 may have a triangular cross-section, or a combination of the above shapes.

[0087] Of course, since the positioning protrusion 140 is embedded in the positioning groove 150, the shape of the positioning groove 150 should be adapted to the shape and size of the positioning protrusion 140. Therefore, the shape and size of the positioning groove 150 can be deduced from the shape and size of the positioning protrusion 140.

[0088] In some embodiments, two adjacent positioning protrusions 140 are spaced apart, with a spacing of less than or equal to 5 μm.

[0089] The entire display module 100 is relatively small in size. If the spacing between two adjacent positioning protrusions 140 is too large, the number of positioning protrusions 140 on the protective layer 120 will be small, resulting in a smaller overall contact area between the positioning protrusions 140 and the positioning groove 150. This ensures that the spacing between two adjacent positioning protrusions 140 is less than or equal to 5 μm. This increases the number of positioning protrusions 140 while maintaining the contact area between a single positioning protrusion 140 and the positioning groove 150, thereby increasing the overall contact area between the positioning protrusions 140 and the positioning groove 150. This reduces the risk of displacement of the encapsulation layer 130 and the display panel 110 when the entire display module 100 is subjected to external force, reduces the risk of damage to the display module 100, and thus improves the service life of the entire display module 100.

[0090] The spacing between two adjacent positioning protrusions 140 can be one of 1um, 2um, 3um, 4um, or 5um.

[0091] In some embodiments, the display module 100 further includes an adhesive layer 160 and a cover plate 170. The adhesive layer 160 bonds the cover plate 170 to the display surface 114 of the display panel 110. The height of the positioning protrusion 140 and the protective layer 120 is less than the distance between the display panel 110 and the cover plate 170.

[0092] The adhesive layer 160 is used to bond the cover plate 170 and the display surface 114. The positioning protrusion 140 is provided on the bonding area 113. If the positioning protrusion 140 is formed on the protective layer 120 before the bonding area 113 is bent, in order to avoid interference between the positioning protrusion 140 and the cover plate 170, the height of the positioning protrusion 140 and the protective layer 120 is less than the distance between the display panel 110 and the cover plate 170, that is, less than the thickness of the adhesive layer 160.

[0093] When manufacturing the display module 100, the cover plate 170 is generally first bonded to the display surface 114 of the display panel 110 through the adhesive layer 160, and then the binding area 113 is bent to the non-display surface 115 of the display panel 110 (the display surface 114 and the non-display surface 115 are located on opposite sides of the display area 112). If the positioning protrusion 140 is set before the binding area 113 is bent, the interference between the positioning protrusion 140 and the cover plate 170 needs to be considered. If the positioning protrusion 140 is set after the binding area 113 is bent, the height of the positioning protrusion 140 is not limited by the above situation.

[0094] The height of the positioning protrusion 140 refers to the height by which the positioning protrusion 140 protrudes from the protective layer 120, that is, the height of the positioning protrusion 140 relative to the protective layer 120. The height of the protective layer 120 can be considered as the thickness of the protective layer 120. The sum of the heights of the positioning protrusion 140 and the protective layer 120 is the height of the positioning protrusion 140 relative to the protective layer 120 plus the thickness of the protective layer 120.

[0095] In some embodiments, the thickness of the adhesive layer 160 is less than or equal to 300 μm, and the thickness of the protective layer 120 is generally negligible, so the height of the positioning protrusion 140 can be less than or equal to 300 μm. This can minimize interference between the positioning protrusion 140 and the cover plate 170.

[0096] Of course, when bending the bonding area 113 before setting the positioning protrusion 140, the height of the positioning protrusion 140 can be set to less than or equal to 300µm. A height of less than or equal to 300µm for the positioning protrusion 140 can accommodate the entire size of the display module 100. If the positioning protrusion 140 is set relatively large, it will protrude beyond the encapsulation layer 130. Furthermore, a relatively large size of the positioning protrusion 140 will result in a smaller number of positioning protrusions 140 on the protective layer 120, leading to malfunctions in the encapsulation layer 130 and the protective layer 120 when subjected to external impact. Setting the height of the positioning protrusion 140 to less than or equal to 300µm ensures sufficient contact area between a single positioning protrusion 140 and the positioning groove 150 while maximizing the number of positioning protrusions 140 at various locations on the protective layer 120. This minimizes the risk of malfunctions in the entire display module 100, thereby improving the lifespan of the display module 100.

[0097] The height of the positioning protrusion 140 can be one of 50um, 100um, 150um, 200um, 250um, or 300um. The heights of the multiple positioning protrusions 140 can be different or the same.

[0098] Regarding the size of a single positioning protrusion 140, the maximum width of the projection surface of the positioning protrusion 140 on the protective layer 120 is less than or equal to 300 μm. If the size of the positioning protrusion 140 is set to be large, the number of positioning protrusions 140 on the protective layer 120 will be small. Due to the different shapes of the positioning protrusions 140, the maximum distance between two adjacent positioning protrusions 140 increases. Under large forces, the positioning protrusions 140 and the positioning grooves 150 are prone to shifting. When the maximum width of the projection surface of the positioning protrusion 140 on the protective layer 120 is less than or equal to 300 μm, the contact area between the positioning protrusion 140 and the positioning grooves 150 can be guaranteed while ensuring the number of positioning protrusions 140. This increases the total contact area between the positioning protrusions 140 and the positioning grooves 150, minimizes the risk of malfunctions in the entire display module 100, and thus improves the service life of the display module 100.

[0099] The maximum width of the projection surface on the protective layer 120 of the positioning protrusion 140 can be one of 50um, 100um, 150um, 200um, 250um, or 300um. The maximum width of the projection surface on the protective layer 120 of multiple positioning protrusions 140 can be different or the same.

[0100] In some embodiments, the positioning protrusion 140 is printed connected to the positioning groove 150.

[0101] The positioning protrusion 140 and the positioning groove 150 are connected by printing. Specifically, after the bonding area 113 is bent and the positioning protrusion 140 is placed on the protective layer 120, an encapsulation layer 130 is printed around the display panel 110. The printing method has high precision, allowing the printing material to be embedded in the gap between two adjacent positioning protrusions 140, so that the printing material can cover the area around the positioning protrusion 140, forming the positioning groove 150 into which the positioning protrusion 140 is embedded, thereby increasing the contact area between the positioning protrusion 140 and the positioning groove 150.

[0102] In other words, the encapsulation layer 130 is set on the protective layer 120 by printing. During the printing process, since the positioning protrusion 140 protrudes from the protective layer 120, the printing material is filled around the positioning protrusion 140 to adapt to the shape of the positioning protrusion 140. A positioning groove 150 that matches the positioning protrusion 140 is formed on the encapsulation layer 130, which can improve the fit between the positioning protrusion 140 and the positioning groove 150, minimize the mismatch between the positioning protrusion 140 and the positioning groove 150, increase the contact area between the positioning protrusion 140 and the positioning groove 150, and minimize the risk of malfunction of the entire display module 100, thereby improving the service life of the display module 100.

[0103] In some embodiments, the positioning protrusion 140 is provided on the protective layer 120 and is printed connected to the protective layer 120.

[0104] If a positioning protrusion 140 is provided after the binding area 113 is bent, the positioning protrusion 140 can be connected to the protective layer 120 by printing. That is, the positioning protrusion 140 and the protective layer 120 are printed together. This can be achieved by first applying a coating material to the outside of the binding area 113 to form a protective layer 120 on the outside of the binding area 113. Then, the positioning protrusion 140 is printed on the side of the protective layer 120 away from the binding area 113.

[0105] In other words, in this case, the positioning protrusion 140 and the protective layer 120 are formed separately. The coating material can be applied to the bonding area 113 to form the protective layer 120 before the bonding area 113 is bent. After the bonding area 113 is bent, the positioning protrusion 140 is printed on the protective layer 120, and finally, the encapsulation layer 130 is printed around the display panel 110 below the cover plate 170.

[0106] When the positioning protrusion 140 and the protective layer 120 are formed separately, the positioning protrusion 140 and the protective layer 120 can be made of different materials. The protective layer 120 can be made of a coating material, and the positioning protrusion 140 can be made of a printing material. This is suitable for situations where the height of the positioning protrusion 140 is greater than the gap between the display surface 114 and the cover plate 170. In this case, the coating material is applied to the bonding area 113 to form the protective layer 120, then the bonding area 113 is bent, and after the bonding area 113 is bent, the positioning protrusion 140 is printed on the protective layer 120. Finally, the encapsulation layer 130 is printed around the display panel 110.

[0107] Alternatively, the positioning protrusion 140 and the protective layer 120 can be made of the same material. The protective layer 120 can be printed in the bonding area 113 first, then the bonding area 113 can be bent, and after bending, the positioning protrusion 140 can be printed on the protective layer 120. Finally, the encapsulation layer 130 can be printed around the display panel 110.

[0108] In some other embodiments, the positioning protrusion 140 is provided on the protective layer 120, and the positioning protrusion 140 is integrally printed with the protective layer 120.

[0109] The positioning protrusion 140 and the protective layer 120 can be directly formed by printing material. This is applicable when the height of the positioning protrusion 140 and the protective layer 120 is less than the distance between the display surface 114 and the cover plate 170. The protective layer 120 and the positioning protrusion 140 are integrally printed on the bonding area 113. Since the height of the positioning protrusion 140 and the protective layer 120 is less than the distance between the display surface 114 and the cover plate 170, the positioning protrusion 140 will not interfere with the cover plate 170.

[0110] In this case, the protective layer 120 and the positioning protrusion 140 can be printed with the same printing material. The protective layer 120 and the positioning protrusion 140 are integrally printed on the outside of the bonding area 113. Then, the bonding area 113 with the protective layer 120 and the positioning protrusion 140 is bent. Finally, the encapsulation layer 130 is printed around the display panel 110 to encapsulate the display panel 110.

[0111] In some implementations, the display module 100 also includes a back film 180 and a spacer 190, the back film 180 being disposed on the non-display surface 115 of the display area 112, and the spacer 190 being disposed between the back film 180 and the bonding area 113.

[0112] In summary, the display module 100 provided in this application embodiment has a positioning protrusion 140 on one of the protective layer 120 and the encapsulation layer 130, and a positioning groove 150 on the other. Through the cooperation of the positioning protrusion 140 and the positioning groove 150, the contact area between the bonding area 113 and the encapsulation layer 130 is enhanced, thereby increasing the working area between the bonding area 113 and the encapsulation layer 130. Under the action of external force, the cooperation of the positioning protrusion 140 and the positioning groove 150 increases the force between the protective layer 120 and the encapsulation layer 130, which can reduce the relative displacement between the encapsulation layer 130 and the bonding area 113, reduce the risk of damage to the display module 100, and thus improve the service life of the entire display module 100.

[0113] Based on the same inventive concept, this application also provides a display module manufacturing method. The display module manufacturing method provided in this application is mainly used to manufacture the above-mentioned display module 100. The display module manufacturing method provided in this application can reduce the risk of displacement of the encapsulation layer 130 and the display panel 110 when the entire display module 100 is subjected to external force, thereby reducing the risk of damage to the display module 100 and improving the service life of the entire display module 100.

[0114] The specific structure of the display module 100 can be referred to the above description, and will not be repeated here. The specific steps of the display module manufacturing method are as follows:

[0115] Please see Figure 6 and Figure 7 Step S100: Set a protective layer 120 in the binding area 113.

[0116] The protective layer 120 protects the bonding area 113, providing waterproofing and moisture resistance. The protective layer 120 needs to completely cover the outer side of the bonding area 113. The protective layer 120 can be formed by coating. Specifically, a coating material can be applied to the outer side of the bonding area 113 to form the protective layer 120. Alternatively, it can be formed by printing. Specifically, printing material is applied to the outer side of the bonding area 113 to form the protective layer 120.

[0117] In step S200, the cover plate 170 is bonded to the display surface 114 of the display panel 110 through the adhesive layer 160, a positioning protrusion 140 is printed on the side of the protective layer 120 away from the binding area 113, and the binding area 113 is bent.

[0118] After setting the protective layer 120, the protective layer 120 needs to be set on the binding area 113 and the binding area 113 needs to be bent. Before bending, the connection between the binding area 113 and the display area 112 is located below the cover plate 170. When setting the positioning protrusion 140, in order to avoid interference between the positioning protrusion 140 and the display panel 110, there are requirements for the size of the positioning protrusion 140. Different methods can be selected according to different sizes of the positioning protrusion 140. Two methods will be described in detail. Steps S212-S216 are one method, and steps S321-S325 are another method.

[0119] Please see Figure 8 Step S200 may include steps S212, S214 and S216.

[0120] Please see Figure 8 and Figure 9 In step S212, the cover plate 170 is bonded to the display surface 114 of the display panel 110 through the adhesive layer 160.

[0121] The display panel 110 includes a display area 112 and a bonding area 113. The display area 112 has a display surface 114 and a non-display surface 115 disposed opposite to each other. First, a cover plate 170 is bonded to the display surface 114 of the display panel 110 through an adhesive layer 160. The cover plate 170 protrudes from the display surface 114, that is, the cover plate 170 completely covers the display surface 114 and its area is larger than that of the display surface 114.

[0122] There is no specific order between steps S100 and S212. Step S100 can be executed first and then step S212, or step S212 can be executed first and then step S100. Alternatively, steps S100 and S212 can be executed simultaneously.

[0123] Please see Figure 8 and Figure 10 In step S214, the binding area 113 with the protective layer 120 is bent.

[0124] After the protective layer 120 is set, the binding area 113 and the entire protective layer 120 are bent so that at least a portion of the binding area 113 can be bent to the side of the non-display surface 115, thereby facilitating the setting of electronic components of the display panel 110.

[0125] Please see Figure 8 and Figure 11 In step S216, a positioning protrusion 140 is printed on the side of the protective layer 120 away from the binding area 113.

[0126] After bending the protective layer 120 and the binding area 113 as a whole, a positioning protrusion 140 is printed on the side of the protective layer 120 away from the binding area 113. This method is suitable for situations where the height of the positioning protrusion 140 and the protective layer 120 is greater than the distance between the display surface 114 and the cover plate 170, and can avoid interference between the positioning protrusion 140 and the cover plate 170.

[0127] Of course, if the height of the positioning protrusion 140 and the protective layer 120 is less than the distance between the display surface 114 and the cover plate 170, it can also be set in the manner of steps S212-S216.

[0128] Please see Figure 12 In addition, step S200 may also include steps S232, S234 and S236.

[0129] Please see Figure 12 and Figure 13 In step S232, a positioning protrusion 140 is printed on the side of the protective layer 120 away from the binding area 113.

[0130] Before bending the binding area 113, a positioning protrusion 140 can be printed on the outside of the binding area 113. Since the protective layer 120 and the positioning protrusion 140 are set before bending the binding area 113, it is necessary to avoid interference between the positioning protrusion 140 and the cover plate 170. It is necessary to ensure that the sum of the heights of the positioning protrusion 140 and the protective layer 120 is less than the distance between the display surface 114 and the cover plate 170. That is, the situation where the sum of the heights of the positioning protrusion 140 and the protective layer 120 is less than the distance between the display surface 114 and the cover plate 170 can be handled using steps S232-S236.

[0131] In addition, the protective layer 120 and the positioning protrusion 140 can be printed in one piece, meaning that the protective layer 120 and the positioning protrusion 140 are simultaneously set by printing. This includes various sequences, such as printing the protective layer 120 first and then printing the positioning protrusion 140, or printing the protective layer 120 and the positioning protrusion 140 simultaneously. Setting the protective layer 120 and the positioning protrusion 140 in one piece reduces manufacturing steps, and the printing method also improves the positioning accuracy of the positioning protrusion 140 on the protective layer 120.

[0132] Please see Figure 12 and Figure 14 In step S234, the cover plate 170 is bonded to the display surface 114 of the display panel 110 through the adhesive layer 160.

[0133] The display panel 110 includes a display area 112 and a bonding area 113. The display area 112 has a display surface 114 and a non-display surface 115 disposed opposite to each other. A cover plate 170 is first bonded to the display surface 114 of the display panel 110 by an adhesive layer 160. The cover plate 170 protrudes from the display surface 114, that is, the cover plate 170 completely covers the display surface 114 and its area is larger than that of the display surface 114.

[0134] Please see Figure 12 and Figure 15 In step S236, the binding area 113, which is provided with a protective layer 120 and a positioning protrusion 140, is bent.

[0135] After the positioning protrusion 140 is printed, the entire binding area 113, positioning protrusion 140 and protective layer 120 are bent so that at least a portion of the binding area 113 can be bent to the side of the non-display surface 115, thereby facilitating the setting of electronic components on the display panel 110.

[0136] In other words, this application provides two ways of setting the positioning protrusion 140. Steps S312-S316 can be applied to two cases where the height of the positioning protrusion 140 and the protective layer 120 is less than the distance between the display surface 114 and the cover plate 170, and the height of the positioning protrusion 140 and the protective layer 120 is greater than or equal to the distance between the display surface 114 and the cover plate 170. Steps S232-S236 are only applicable to one case where the height of the positioning protrusion 140 and the protective layer 120 is less than the distance between the display surface 114 and the cover plate 170.

[0137] Please see Figure 6 , Figure 16 and Figure 17 In step S300, an encapsulation layer 130 is printed around the display panel 110 so that the encapsulation layer 130 forms a positioning groove 150 that mates with the positioning protrusion 140.

[0138] The encapsulation layer 130 is applied to the protective layer 120 by printing. During the printing process, since the positioning protrusion 140 protrudes from the protective layer 120, the printing material is filled around the positioning protrusion 140 to adapt to its shape. A positioning groove 150 that matches the positioning protrusion 140 is formed on the encapsulation layer 130, which improves the fit between the positioning protrusion 140 and the positioning groove 150, minimizes the mismatch between the positioning protrusion 140 and the positioning groove 150, increases the contact area between the positioning protrusion 140 and the positioning groove 150, and minimizes the risk of malfunction of the entire display module 100, thereby improving the service life of the display module 100.

[0139] In summary, the display module manufacturing method provided in this application enhances the contact area between the bonding area 113 and the encapsulation layer 130 by printing a positioning protrusion 140 on the protective layer 120 and then printing an encapsulation layer 130 on the outside of the positioning protrusion 140. This increases the interaction area between the bonding area 113 and the encapsulation layer 130. Under external force, the interaction force between the protective layer 120 and the encapsulation layer 130 is increased by the cooperation of the positioning protrusion 140 and the positioning groove 150. This reduces the relative displacement between the encapsulation layer 130 and the bonding area 113, thereby reducing the risk of damage to the display module 100 and improving the service life of the entire display module 100.

[0140] Based on the same inventive concept, this application also provides a display device, including the aforementioned display module 100. The display device can be an interactive display device such as an electronic whiteboard, a home appliance with display functionality, or a wearable device.

[0141] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0142] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0143] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A display module, characterized in that, include: The display panel includes a display area and a binding area connected to the display area; A protective layer covers the outside of the binding area; An encapsulation layer is disposed around the perimeter of the display panel; In the protective layer and the encapsulation layer, one is provided with a positioning protrusion and the other is provided with a positioning groove, and the positioning protrusion is embedded in the positioning groove. When the protective layer is provided with a positioning protrusion, the connection area between the positioning protrusion and the protective layer is smaller than the projected area of ​​the positioning protrusion on the protective layer.

2. The display module according to claim 1, characterized in that, When the protective layer is provided with a positioning protrusion, the height of the positioning protrusion relative to the protective layer is less than or equal to 300 μm.

3. The display module according to claim 1, characterized in that, The maximum width of the projection surface of the positioning protrusion on the protective layer is less than or equal to 300 μm.

4. The display module according to claim 1, characterized in that, There are multiple positioning protrusions, and the multiple positioning protrusions are disposed on the protective layer or the encapsulation layer.

5. The display module according to claim 4, characterized in that, The two adjacent positioning protrusions are spaced apart, with a spacing of less than or equal to 5 μm.

6. The display module according to claim 4, characterized in that, The shapes of any two positioning protrusions may be the same or different.

7. The display module according to claim 1, characterized in that, The cross-sectional shape of the positioning protrusion is at least one of the following: T-shaped, L-shaped, rectangular, circular, trapezoidal, triangular, and arc-shaped.

8. The display module according to any one of claims 1-7, characterized in that, The positioning protrusion is printed and connected to the positioning groove.

9. The display module according to any one of claims 1-7, characterized in that, The display module further includes an adhesive layer and a cover plate. The adhesive layer bonds the cover plate and the display surface of the display panel. The height of the positioning protrusion and the protective layer is less than the distance between the display panel and the cover plate.

10. The display module according to any one of claims 1-7, characterized in that, With the positioning protrusion provided in the protective layer, the positioning protrusion and the protective layer are integrally printed.

11. The display module according to any one of claims 1-7, characterized in that, With the positioning protrusion provided in the protective layer, the positioning protrusion is printed and connected to the protective layer.

12. The display module according to any one of claims 1-7, characterized in that, The protective layer may be made of the same material as or a different material than the positioning protrusion.

13. A method for manufacturing a display module, characterized in that, The method for manufacturing the display module includes: A protective layer is provided in the bonding area of ​​the display panel, wherein the protective layer is formed by printing or by coating; The cover plate is bonded to the display surface of the display panel through an adhesive layer; a positioning protrusion is printed on the side of the protective layer away from the bonding area; and the bonding area is bent. An encapsulation layer is printed around the display panel to form a positioning groove that mates with the positioning protrusion. The steps of bonding the cover plate to the display surface of the display panel through an adhesive layer, printing positioning protrusions on the side of the protective layer away from the bonding area, and bending the bonding area include: The cover plate is bonded to the display surface of the display panel through the adhesive layer; The binding area where the protective layer is provided is bent; The positioning protrusion is printed on the side of the protective layer away from the protective layer.

14. The method for manufacturing a display module according to claim 13, characterized in that, The steps of bonding the cover plate to the display surface of the display panel through an adhesive layer, printing positioning protrusions on the side of the protective layer away from the bonding area, and bending the bonding area include: The positioning protrusion is printed on the side of the protective layer away from the binding area; The cover plate is bonded to the display surface of the display panel through the adhesive layer; The binding area is provided with the protective layer and the positioning protrusion.

15. A display device, characterized in that, Includes the display module as described in any one of claims 1-12.

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